参数资料
| 型号： | ISL6277IRZ |
| 厂商： | Intersil |
| 文件页数： | 19/37页 |
| 文件大小： | 0K |
| 描述： | IC PWM REG MULTIPH AMD 48-QFN |
| 标准包装： | 50 |
| 应用： | 控制器，AMD Fusion? SVI 2.0 CPU GPU |
| 输入电压： | 4.5 V ~ 25 V |
| 输出数： | 2 |
| 输出电压： | 0.006 V ~ 1.55 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-VFQFN 裸露焊盘 |
| 供应商设备封装： | 48-QFN（6x6） |
| 包装： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页当前第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页
ISL6277
REP RATE = 10kHz
Modes of Operation
TABLE 1. CORE VR MODES OF OPERATION
PSL0_L
&
OCP
THRESHOLD
CONFIG.
ISEN3
ISEN2
PSI1_L
MODE
(μA)
3-phase
To Power To Power
11
3-phase CCM
45
Core VR
Config.
Stage
Stage
01
00
1-phase DE
1-phase DE
2-phase
Tied to 5V To Power
11
2-phase CCM
45
REP RATE = 25kHz
Core VR
Config.
Stage
01
00
1-phase DE
1-phase DE
1-phase
Core VR
Config.
Tied to 5V Tied to
5V
11
01
00
1-phase CMM
1-phase DE
1-phase DE
45
The Core VR can be configured for 3, 2- or 1-phase operation.
Table 1 shows Core VR configurations and operational modes,
programmed by the ISEN3 and ISEN2 pin status and the PSL0_L
& PSL1_L commands via the SVI 2 interface, see Table 9.
For a 2-phase configuration, tie the ISEN3 pin to 5V. In this
REP RATE = 50kHz
REP RATE = 100kHz
REP RATE = 200kHz
configuration, phases 1 and 2 are active. To select a 1-phase
configuration, tie the ISEN3 pin and the ISEN2 pin to 5V. In this
configuration, only phase-1 is active.
In a 3-phase configuration, the Core VR operates in 3-phase CCM,
with PSI0_L and PSI_L both high. If PSI0_L is taken low via the
SVI 2 interface, the Core VR sheds Phase 2 and Phase 3. Phase 1
enters Diode Emulation (DE) mode. When both PSI0_L and
PSI1_L are taken low, the Core VR continues to operate in
1-phase DE mode.
For 2-phase configurations, the Core VR operates in 2-phase CCM
with PSI0_L and PSI_L both high. If PSI0_L is taken low via the
SVI 2 interface, the Core VR sheds Phase 2 and the Core VR
enters 1-phase DE mode. When both PSI0_L and PSI1_L are
taken low, the Core VR continues to operate in 1-phase DE mode.
In a 1-phase configuration, the Core VR operates in 1-phase CCM
and enters 1-phase DE when PSI0_L is taken low and continues
to operate in this mode when both PSI0_l and PSI1_L are taken
low.
The Core VR can be disabled completely by connecting ISEN1 to
+5V.
ISL6277 Northbridge VR can be configured for 2- or 1-phase
operation. Table 2 shows the Northbridge VR configurations and
operational modes, which are programmed by the ISEN2_NB pin
status and the PSI0_L and PSI1_L bits of the SVI 2 command.
TABLE 2. NORTHBRIDGE VR MODES OF OPERATION
PSL0_L &
OCP
ISEN2_NB
To Power
Stage
CONFIG.
2-phase NB
VR Config.
PSI1_L
11
01
MODE
2-phase CCM
1-phase DE
THRESHOLD
45μA
FIGURE 17. CURRENT BALANCING DURING DYNAMIC OPERATION.
CH1: I L1 , CH2: I LOAD , CH3: I L2 , CH4: I L3
Tied to 5V
1-phase NB
VR Config.
00
11
01
1-phase DE
1-phase CCM
1-phase DE
45μA
19
00
1-phase DE
FN8270.1
March 8, 2012
相关PDF资料 |
PDF描述 |
|---|---|
| HCC22DRXN | CONN EDGECARD 44POS DIP .100 SLD |
| ISL62773HRZ | IC PWM REG MULTIPH AMD 48-QFN |
| 400MXC390MEFCSN30X45 | CAP ALUM 390UF 400V 20% SNAP-IN |
| X40030V14I-A | IC VOLTAGE MONITOR TRPL 14-TSSOP |
| HCC22DRXH | CONN EDGECARD 44POS DIP .100 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6277IRZ-T | 功能描述:IC PWM REG MULTIPH AMD 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL62810AHRUZ-T | 制造商:Intersil Corporation 功能描述:0/2-BIT PWM GPU CONTROLLER FOR NOTEBOOK. 20 LD 3.2 X 1.8 UTQ - Tape and Reel 制造商:Intersil 功能描述:0/2 BIT PWM GPU CONTLR FOR NOTEBOOK |
| ISL62810HRUZ-T | 制造商:Intersil Corporation 功能描述:0/2-BIT PWM GPU CONTROLLER FOR NOTEBOOK. 16LD 2.6 X 1.8 UTQF - Tape and Reel 制造商:Intersil 功能描述:0/2 BIT PWM GPU CONTLR FOR NOTEBOOK |
| ISL62870 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:PWM DC/DC Voltage Regulator Controller |
| ISL62870HRUZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:PWM DC/DC Voltage Regulator Controller |
发布紧急采购，3分钟左右您将得到回复。